河东煤田中部石炭纪含煤岩系中的风暴事件沉积

STORM EVENT DEPOSIT OF COAL BEARING ROCK SERIES OF THE CARBONIFEROUS IN THE CENTRE OF THE EASTERN YELLOW RIVER COALFIELD

  • 摘要: 发现了中石炭统本溪组的砂质风暴岩和上石炭统太原组中上部的钙质风暴岩,描述了风暴岩的特征序列,分析了各类型风暴岩形成的环境。

     

    Abstract: When studying in the centre of the Eastern Yellow River Coalfield,the authors discovered the storm event deposit of the carboniferous.It includes the sandy tempestites of Benxi Group of Middle System and the mid-upper clastic tempestites of Taiyuan Group of Upper System.Perpendicularly the tempestites show a set of characteristic sequence.It may be divided successively from the bottom to the top into undulated base erosion surface,stagnant bed,normal size sequence,rippled bed in the middle and the disturbed bed at the top.

     

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